K2HASH provides a NoSQL(key value store) tools and a library under
MIT license. K2HASH tools create/write/read files or memory which
is allocated by K2HASH library. K2HASH library stores its data in
three ways: on-memory, fully mapping file and partially mapping
file and directly accessing a file.
Please visit the website and get more details at:
https://github.com/yahoojapan/k2hash